Which event marks the beginning of the cardiac cycle?

A) ventricular systole
B) atrial diastole
C) atrial arrhythmia
D) ventricular diastole
E) atrial systole


E) atrial systole

Anatomy & Physiology

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Defense of the body against a particular pathogen is provided by

A) innate immunity. B) adaptive immunity. C) immunological surveillance. D) skin defenses. E) fever.

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Blood flows from the fetus to the placenta through paired

A) umbilical vein. B) iliac veins. C) umbilical arteries. D) uterine veins. E) uterine arteries.

Anatomy & Physiology

Within normal limits, an increase in preload leads to

A. an increase in cardiac output and force of left ventricular contraction. B. a decrease in cardiac output and force of left ventricular contraction. C. an increase in cardiac output and a decrease in force of left ventricular contraction. D. a decrease in cardiac output and an increase in the force of left ventricular contraction. E. a decrease in stroke volume and heart rate.

Anatomy & Physiology

Fibrin is quickly disposed of by plasmin activated by __________ or tPA

Fill in the blank(s) with correct word

Anatomy & Physiology